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Add IPv6 overlay address support to client interface and engine

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This commit is contained in:
Viktor Liu
2026-03-24 06:56:49 +01:00
parent 013770070a
commit b852ce1a99
60 changed files with 4077 additions and 1647 deletions
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31
client/iface/device/device_windows.go
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@@ -87,7 +87,19 @@ func (t *TunDevice) Create() (WGConfigurer, error) {
err = nbiface.Set()
if err != nil {
t.device.Close()
return nil, fmt.Errorf("got error when getting setting the interface mtu: %s", err)
return nil, fmt.Errorf("set IPv4 interface MTU: %s", err)
}
if t.address.HasIPv6() {
nbiface6, err := luid.IPInterface(windows.AF_INET6)
if err != nil {
log.Warnf("failed to get IPv6 interface for MTU: %v", err)
} else {
nbiface6.NLMTU = uint32(t.mtu)
if err := nbiface6.Set(); err != nil {
log.Warnf("failed to set IPv6 interface MTU: %v", err)
}
}
}
err = t.assignAddr()
if err != nil {
@@ -178,8 +190,21 @@ func (t *TunDevice) GetInterfaceGUIDString() (string, error) {
// assignAddr Adds IP address to the tunnel interface and network route based on the range provided
func (t *TunDevice) assignAddr() error {
luid := winipcfg.LUID(t.nativeTunDevice.LUID())
log.Debugf("adding address %s to interface: %s", t.address.IP, t.name)
return luid.SetIPAddresses([]netip.Prefix{netip.MustParsePrefix(t.address.String())})
v4Prefix := t.address.Prefix()
if t.address.HasIPv6() {
v6Prefix := t.address.IPv6Prefix()
log.Debugf("adding addresses %s, %s to interface: %s", v4Prefix, v6Prefix, t.name)
if err := luid.SetIPAddresses([]netip.Prefix{v4Prefix, v6Prefix}); err != nil {
log.Warnf("failed to assign dual-stack addresses, retrying v4-only: %v", err)
t.address.ClearIPv6()
return luid.SetIPAddresses([]netip.Prefix{v4Prefix})
}
return nil
}
log.Debugf("adding address %s to interface: %s", v4Prefix, t.name)
return luid.SetIPAddresses([]netip.Prefix{v4Prefix})
}
func (t *TunDevice) GetNet() *netstack.Net {